Phace: Physics-based Face Modeling and Animation

Alexandru-Eugen Ichim, Petr Kadlecek, Ladislav Kavan, Mark Pauly We present a novel physics-based approach to facial animation. Contrary to commonly used generative methods, our solution computes facial expressions by minimizing a set of non-linear potential energies that model the physical interaction of passive flesh, active muscles, and rigid bone structures. By integrating collision and contact […]

Example-Based Damping Design

Hongyi Xu, Jernej Barbič To date, material modeling in physically based computer animation has largely focused on mass and stiffness material properties. However, deformation dynamics is largely affected also by the damping properties. In this paper, we propose an interactive design method for nonlinear isotropic and anisotropic damping of complex three-dimensional solids simulated using the […]

Perceptual Evaluation of Liquid Simulation Methods

Kiwon Um, Xiangyu Hu, Nils Thuerey This paper proposes a novel framework to evaluate fluid simulation methods based on crowd-sourced user studies in order to robustly gather large numbers of opinions. The key idea for a robust and reliable evaluation is to use a reference video from a carefully selected real-world setup in the user […]

Multi-species simulation of porous sand and water mixtures

A. Pradhana Tampubolon, T. Gast, G. Klar, C. Fu, J. Teran, C. Jiang, K. Museth We present a multi-species model for the simulation of gravity driven landslides and debris flows with porous sand and water interactions. We use continuum mixture theory to describe individual phases where each species individually obeys conservation of mass and momentum […]

Robust eXtended Finite Elements for Complex Cutting of Deformables

Dan Koschier, Jan Bender, Nils Thuerey In this paper we present a robust remeshing-free cutting algorithm on the basis of the eXtended Finite Element Method (XFEM) and fully implicit time integration. One of the most crucial points of the XFEM is that integrals over discontinuous polynomials have to be computed on subdomains of the polyhedral […]

Enriching Facial Blendshape Rigs with Physical Simulation

Yeara Kozlov, Derek Bradley, Moritz Bächer, Thabo Beeler, Markus Gross Oftentimes facial animation is created separately from overall body motion. Since convincing facial animation is challenging enough in itself, artists tend to create and edit the face motion in isolation. Or if the face animation is derived from motion capture, this is typically performed in […]

Simulation-Ready Hair Capture

Liwen Hu, Derek Bradley, Hao Li, Thabo Beeler Physical simulation has long been the approach of choice for generating realistic hair animations in CG. A constant drawback of simulation, however, is the necessity to manually set the physical parameters of the simulation model in order to get the desired dynamic behavior. To alleviate this, researchers […]